Probabilistic Short Circuit Analysis on Zero-sequence Current in Single-phase Grounding Faults

In this paper, based on probability modeling, Monte Carlo simulation is adopted to conduct the probabilistic short circuit analysis on the single-phase grounding faults of distribution network. Firstly, a distribution network with four feeders and a photovoltaic (PV) generation is built in Matlab/ Simulink. Subsequently, the randomness of fault location, transition resistance, load and PV generation are modeled. Lastly, the specific impacts of these probabilistic uncertainties on the zero-sequence current of such fault line in the single-phase grounding condition are investigated and studied, as well as the corresponding conclusions are drawn.